Improvement in harvesters



M. EASTERBQROOK. Jr.

Harvester.

Patented May 22,1866

Inventor:

Witnesges:

OFFICE.

PATE1T1 M. EASTERBROOK, JR, OF GENEVA, NEW YORK;

IMPROVEM ENT IN HA RVESTERS.

Specification forming part of Letters Patent No. 54,876, dated May 22,1866.

To all whom it may concern:

Be it known that I, M. EASTERBROOK, Jr., of Geneva, in the county ofOntario and State of New York, have invented a new and useful Mode ofChanging the Speed of Gutters of Harvesters; and I do hereby declarethat the following is a full, clear, and exact description thereof,reference being had to the accompanying drawings, making part of thisspecification, in which- Figure 1 is a side elevation of thedrivingwheel and frame of an ordinary harvester having my inventionattached. Fig. 2 is a detached viewot' the adjusting-lever O, with thetwo intermediate pinions,p and p, attached.

Similar letters indicate corresponding parts in both figures.

The object of this invention is the same as that of my formerapplication, filed August 29, 1865; and it consists in attaching twoloose pinions to an adjusting-lever in such arelative relation to adouble pinion fixed to the counter-shaft and the driving-wheel that thecutters may be thrown into or out of gear, or their motion increased ordiminished, by said lever withoutreversing the motion of thecrank-shaft. I

To enable others to make and use my invention, I will describe itsconstruction and operation.

I use the ordinary spur-wheel B, attached to the ground-wheel D, alsothe same countershaft and bevel-gearing G and'crank-shaft F. Instead,however, of the spur-pinion of the counter-shaft gearing into thespur-wheel on the ground-wheel, as ordinarily done, it is made doubleand rigidly attached to the shaft 0, and the latter is so hung that thepinion just clears the gear on the driving-wheel. One set of teeth inthis pinion forms'a considerably larger pinion than the other set,'asshown in the drawings.

The lever O is made L-shaped, as shown in Fig. 2, the short arm '1]terminating in a T,

and this latter carries the two intermediate pinions, p and p. The leveris hinged to the shaft S of the ground-wheels, and the pinions are sohung as always to remain in gear with the spur-wheel B. Therefore whenthe handlever O is thrown from one extreme to another the pinions simplytravel around the spur-wheel until one orthe other, as may be desired,enters into gear with the double pinion.

It will be seen that with this arrangement the crank-shaft alwaysrevolves in the same direction, whether it is running at the high or atthe low speed, and therefore the changes may be effected withoutincurring the great difliculty of forcing one gear into another, as whenthey are revolving in opposite directions, which is extremelyimpracticable.

It might be desirable to hang the two loose pinions 19 and p to astraight lever, one above the other, and near enough together to keepboth in gear with its respective portion of the double pinion b, andhanging the lever to the counter-shaft c. In this case, when the cuttersare not in motion all the gearing is at rest except that on theground-wheel. Besides, the changes would probably be more easilyeffected, there being less material to move, and of course theconstruction of the parts would be much simpler.

What I claim as my invention, and desire to secure by Letters Patent, is

.1. The combination of the hand-lever and two loose pinions, p and p,with the double pinion b and the spur-wheel B, arranged and operatingsubstantially as and for the purposes set forth.

2. The two loose pinions p and 19, (whether they are adjusted with ahand-lever or other suitable device,) in combination with the doublepinion b and the spur-wheel, substantially in the manner and for thepurposes shown and described.

M. EASTERBROGK, JR.

Witnesses WM. S. LAUGHBOROUGH, P. T. TURNER.

